Owner's manual

MAXX-1200 Owner’s Manual Page 25
Rear Panel Elements
Video Inputs
The server accepts baseband video in HD-SDI format (SMPTE 292M) and records on channel
#1. The input has an internal 75-ohm termination. Encoding is JPEG-2000.
Video Outputs
Three video outputs are provided in HD-SDI (SMPTE 292M) format.
Three additional HDMI outputs are available, but must be specified as a factory-installed option
when the server is ordered. Each HDMI output duplicates the video and output for one of the
server’s three channels.
Since the MAXX-1200 server is designed for commercial use, it does not implement HDCP
(H
igh-bandwidth Digital Content Protection). As no HDMI input is provided, there is no means
to ingest HDCP-protected content. Similarly, there is no risk that stored content might fail to
output as a result of some HDCP issue.
Audio I/O
MAXX-1200’s multiple audio formats ensure that the server will fit in most settings. Audio
inputs and outputs are available in three formats:
• Eight channels of SDI embedded audio (standard)
• Two channels of +4 dBu balanced analog audio (standard)
• Multi-channel AES/EBU digital audio is optionally available as described below.
Embedded Audio
Embedded audio can be recorded, and is always present in each HD-SDI video output.
Embedded audio is eight-channel with 20-bit resolution. Selection of audio input is made from
the GUI’s menu system.
Analog Audio Capability
Each video channel has two analog audio outputs, configured as a stereo pair. The video input
can also accept embedded audio, as selected through the GUI.
Digital Audio Capability
The optional DXP-2 Multi-Channel Digital Module provides 4 AES/EBU outputs (8 channels) for
each video output, plus 4 AES/EBU inputs (8 channels) for the input. Signals appear on XLR
connectors. The DXP-2 is self-powered with dual redundant power supplies. It is a 2U (3½” [88
mm] in height) rack mount chassis.
Audio Word Size and Sample Rate
The server employs 24-bit audio A/D and D/A converters, and records audio in a 24-bit frame,
regardless of the word size received. The sample rate is fixed at 48K. When using an AES/EBU
digital audio, its 48K sample rate should be referenced to its video. When that is not possible,